4 Offensive line coach Joe Rudolph must replace four starters on his unit – left tackle Jon Dietzen, left guard Michael Deiter, right guard Beau Benzschawel and right tackle David Edwards.

5 UW had five losses last season, including four in Big Ten play. The Badgers lost a combined seven games in Paul Chryst’s first three seasons.

UW had five losses under head coach Paul Chryst last season. The Badgers lost a combined seven games in Chryst’s first three seasons.(Photo: Adam Wesley/USA TODAY NETWORK-Wis)

8.7 The Badgers allowed an average of 22.6 points per game last season. That was the No. 5 mark in the Big Ten but an increase of 8.7 from 2017.

10 Injuries and inexperience led defensive coordinator Jim Leonhard to give 10 defensive backs at least one start over UW’s final eight games last season. The only key members of the secondary who departed were safeties D’Cota Dixon and Evan Bondoc.

12 The Badgers finished 12th in the Big Ten in passing offense last season at 157.7 yards per game. That was the lowest mark since Chryst took over as head coach and the lowest since UW averaged 148.7 in 2014.

18 UW’s top three tailbacks last season – Jonathan Taylor, Taiwan Deal and Garrett Groshek – combined for 480 carries. They lost yardage on a combined 18 carries, or 3.8%.

19 UW’s defense generated 19 sacks in 13 games in 2018, an average of 1.5 per game. That was a huge drop-off from the previous season, when UW had 42 sacks in 14 games, an average of three per game.

Penn State quarterback Trace McSorley is sacked by Wisconsin linebacker Zack Baun during a game last season. UW generated 19 sacks in 13 games in 2018, a drop from the previous season.(Photo: Mark Hoffman, Milwaukee Journal Sentinel)

42 The Badgers’ longest field goal last season was 42 yards, by Rafael Gaglianone in the opener against Western Kentucky. UW had just two attempts longer than 42 – 51 by Gaglianone and 62 by Zach Hintze. Both kicks were missed in a 14-point loss at Northwestern.

202 Inside linebackers T.J. Edwards (113) and Ryan Connelly (89) finished 1-2 on the team in tackles last season with a combined 202 stops. Senior Chris Orr and the rest of the inside linebackers have large cleats to fill.

.750 UW’s three crossover foes are Michigan, Michigan State and Ohio State. Those teams combined to finish 30-10 last season, a .750 winning percentage. The Wolverines finished 10-3, the Spartans were 7-6 and the Buckeyes finished 13-1.